42950121 has 8 divisors (see below), whose sum is σ = 57802464. Its totient is φ = 28365600.

The previous prime is 42950119. The next prime is 42950129. The reversal of 42950121 is 12105924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42950121 - 2¹ = 42950119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42950091 and 42950100.

It is not an unprimeable number, because it can be changed into a prime (42950129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66580 + ... + 67221.

It is an arithmetic number, because the mean of its divisors is an integer number (7225308).

Almost surely, 2^42950121 is an apocalyptic number.

It is an amenable number.

42950121 is a deficient number, since it is larger than the sum of its proper divisors (14852343).

42950121 is a wasteful number, since it uses less digits than its factorization.

42950121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133911.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 42950121 is about 6553.6341826501. The cubic root of 42950121 is about 350.2042916181.

It can be divided in two parts, 42950 and 121, that added together give a triangular number (43071 = T₂₉₃).

The spelling of 42950121 in words is "forty-two million, nine hundred fifty thousand, one hundred twenty-one".